In a very large bowl, combine the 2 packages of milk chocolate chips, the one
package of semisweet chocolate chips, both jars of marshmallow cream, 2 t.
vanilla extract, the Irish Cream, and nuts if you are adding them. Set this
mixture aside.

Line a 10-x-15-inch pan with foil and spread lightly with butter or margarine.

In a medium sized saucepan, combine 4 1/2 C. of granulated sugar, 1 can of
evaporated milk, and 1/2 lb. of butter. Bring to a gentle boil over medium heat
and cook slowly, stirring constantly for about 10 minutes.

Pour the milk mixture into the very large bowl holding the chocolate chip
mixture. Stir slowly by hand to combine. It is very important to do this by hand
and NOT use any kind of mixer.